• Imaging Science in Dentistry
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• 제43권1호
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• pp.37-44
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• 2013

Purpose: The aim of this study was to analyze three-dimensional images of the arterial supply to the temporo-mandibular joint. Materials and Methods: Ten patients (five men and five women, mean age 36 years) without signs or symptoms of temporomandibular disorders, who underwent contrast-enhanced computed tomographic (CT) scanning with intravenous contrast, were studied. The direct volume rendering technique of CT images was used, and a data set of images to visualize the vasculature of the human temporomandibular joint in three dimensions was created. After elaboration of the data through post-processing, the arterial supply of the temporomandibular joint was studied. Results: The analysis revealed the superficial temporal artery, the anterior tympanic artery, the deep temporal artery, the auricular posterior artery, the transverse facial artery, the middle meningeal artery, and the maxillary artery with their branches as the main arterial sources for the lateral and medial temporomandibular joint. Conclusion: The direct volume rendering technique was found to be successful in the assessment of the arterial supply to the temporomandibular joint. The superficial temporal artery and maxillary artery ran along the lateral and medial sides of the condylar neck, suggesting that these arteries are at increased risk during soft-tissue procedures such as an elective arthroplasty of the temporomandibular joint.

• 한국식품영양과학회지
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• 제34권2호
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• pp.291-297
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• 2005

소비자의 기호 및 상품성을 높이고 다시마, 청매실, 동충하초, 키토산의 여러 성분과 영양 및 기능성이 향상된 저염 멸치액젓을 개발하고자, 5년간 숙성시킨 멸치액젓(식염 26%)에 끓인 물로 염 농도를 14 및 17%으로 조정한 후 다시마, 청매실, 동충하초, 키토산을 첨가하여 150일 동안 후 숙성하면서 나타나는 제품의 품질특성을 분석하였다. 저장기간 동안에 pH는 서서히 감소하였고, 아미노질소 및 휘발성 염기 질소량은 저장 50일째까지 증가하였다가, 일정한 값을 유지하였으며, TBA 값은 저장 50일째까지 증가하였다가 감소하였다. 생균수를 비롯한 젖산균, 단백질분해균 및 곰팡이균은 후 숙성이 진행됨에 따라 다소 일정한 증가율을 나타내었다. 다시마, 청매실, 동충하초 및 키토산 첨가에 따른 제품 열화현상은 저장 150일째까지는 나타나지 않아서, 저염 멸치액젓으로 상품화의 개발이 가능함을 확인하였다. 하지만 숙성 150일부터는 관능적으로 다소 감소함을 볼 수 있어서 유통기한에 대한 실험과 제조된 저염 멸치액젓에 대한 기능성 검증에 대한 실험이 추가적으로 필요하다고 본다.

• Smart Structures and Systems
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• 제25권1호
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• pp.111-122
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• 2020

Researchers up to date have introduced several Structural Health Monitoring (SHM) techniques with varying advantages and drawbacks for each. Satellite positioning systems (GPS, GLONASS and GALILEO) based techniques proved to be promising, especially for high natural period structures. Particularly, the GPS has proved sufficient performance and reasonable accuracy in tracking real time dynamic displacements of flexible structures independent of atmospheric conditions, temperature variations and visibility of the monitored object. Tall structures are particularly sensitive to oscillations produced by different sources of dynamic actions; such as typhoons. Wind forces induce in the structure both longitudinal and perpendicular displacements with respect to the wind direction, resulting in torsional effects, which are usually more complex to be detected. To efficiently track the horizontal rotations of the in-plane sections of such flexible structures, two main issues have to be considered: a suitable sensor topology (i.e., location, installation, and combination of sensors), and the methodology used to process the data recorded by sensors. This paper reports the contributions of the measurements recorded from dual frequency GPS receivers and uni-axial accelerometers in a full-scale experimental campaign. The Canton tower in Guangzhou-China is the case study of this research, which is instrumented with a long-term structural health monitoring system deploying both accelerometers and GPS receivers. The elaboration of combining the obtained rather long records provided by these two types of sensors in detecting the torsional behavior of the tower under ambient vibration condition and during strong wind events is discussed in this paper. Results confirmed the reliability of GPS receivers in obtaining the dynamic characteristics of the system, and its ability to capture the torsional response of the tower when used alone or when they are combined with accelerometers integrated data.

• 한국정보시스템학회지:정보시스템연구
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• 제16권4호
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• pp.131-155
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• 2007

The purpose of this thesis is to study on the philosophical analysis model and its methodological application of information systems research evaluation from critical realist perspective. Fist of all, I examine ontological epistemological methodological assertions of critical realism. Because the philosophy of critical realism is an opportunity for information systems study. I examine Dobson and Mutch's critical realist perspective on actors-structure model. I suggest a critical realist actors-praxis-structure model. This model provides the potential for a new approach to social investigations in its provision of an ontology for the analytical separation of structure and agency. Of most importance might be the incorporation of non-humans into the analysis of social interaction and of technology into the elaboration of structures. I also examine Tsoukas's critical realistic meta-theory of management. I suggest a critical realist IS management model. This model elucidate the nature of management and delineate the scope of applicability of various perspectives on management. The causal powers of management reside in the real domain and, taken together, their logics are contradictory, the effects of their contradictory composition are contingent upon prevailing contingencies. I analyze Carlsson's theory of design knowledge. His framework builds on that the aim of IS design science research is to develop practical knowledge for the design and realization of different classes of IS initiatives, where IS are viewed as socio-technical systems and not just IT artefacts. The framework proposes that the output of IS design science research is practical IS design knowledge in the form of field-tested and grounded technological rules. The IS design knowledge is developed through an IS design science research cycle. In conclusion, I think that IS actors-praxis-structure model, meta-theoretical IS management model, and IS design knowledge model according to critical realistic approach are very useful for IS research evaluation. Nevertheless, important problems are left not resolved.

• 한국ITS학회 논문지
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• 제10권6호
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• pp.126-139
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• 2011

4단계 교통수요 추정법은 순차성에 의해 선행단계의 추정결과에 근거하여 모형을 수립한다. 그러므로 전 단계에서 정확한 분석이 이루어지지 않으면 다음 단계에서의 정확한 분석 결과를 기대하기 어렵다. 특히 통행발생은 4단계모형의 첫번째 단계로 이 단계의 추정결과에 따라 전체 수요예측에 크게 영향을 미치는 것을 알 수 있다. 기존 수도권 통행발생모형은 선형회귀 모형식을 이용하여 서울 및 수도권지역의 통행발생모형을 구축하였으나 다양한 토지이용 특성을 반영하지 못한다는 단점을 가지고 있으며, 4단계 모형에서 발생되는 오차를 크게 하는 요인으로 작용하고 있다. 따라서 본 연구는 기존 통행발생모형의 한계를 개선하기 위해 토지이용 특성을 반영한 통행발생모형을 구축하고자 한다. 모형 개선을 위해 존의 사회경제지표 및 토지이용을 변수로 사용하였고, 검증을 위해 기존모형식과 RMSE%값을 비교분석하였다. 그 결과 기존모형은 주거 특성이 강한지역의 추정에서는 오차범위가 적으나, 2 3차 산업비중이 높은 지역에서는 설명력이 떨어지는 것으로 분석되었다. 또한 각 목적별 모형이 전반적으로 기존모형보다 오차가 적은 것으로 나타났다. 따라서 본 연구에서 제시한 사회경제지표 및 토지이용변수를 활용하여 각 지역별 모형을 추정한 결과가 기존 연구보다 우수한 것을 알 수 있었다.

• 한국사회복지학
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• 제56권3호
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• pp.207-225
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• 2004

본 연구는 공공부조수급자의 일에 대한 태도를 보다 객관적으로 측정할 수 있는 측정도구를 개발하기 위해 시도되었다. 이를 위해 본 연구에서는 일에 대한 태도와 관련된 다양한 기존 척도들을 심층적으로 검토하였으며, 전문가조사와 실증조사를 실시하는 등 체계적인 연구절차를 진행하였다. 연구결과 공공부조수급자의 일에 대한 태도는 11개 문항 5점 척도이며, 독립과 자립, 일 자체, 근면과 성공이라는 세 개의 요인으로 구성되었다. 본 척도에 대해 3개의 하위요인에 의해 설명되는 누적설명력은 54.9%였으며 내적 신뢰도는 ${\alpha}=.79$였다. 본 연구에서 개발된 척도에 의해 측정된 공공부조 수급자의 일에 대한 태도는 55점 만점에 43.9점으로 비교적 높은 수준의 일에 대한 긍정적 태도를 가지고 있는 것으로 나타났다. 본 연구는 기존 연구들에 비해 이론적 검토 및 실증적 검증 절차를 거쳐 공공부조수급자의 일에 대한 태도 측정도구를 개발한 연구라는 점에 의의를 갖는다. 또한 공공부조수급자의 일에 대한 태도에 대한 과학적 측정도구의 적용으로 향후 학문적 연구주제가 다양화될 수 있을 뿐 아니라 현재 우리나라 공공부조 정책의 개선과 보완에도 기여할 수 있을 것이라 기대된다.

• 대한수학교육학회지:수학교육학연구
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• 제26권3호
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• pp.421-442
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• 2016

이 연구는 현직 교사 38명이 삼각형의 무게중심 수업을 관찰한 결과를 검토하여 교사들의 수업 분석 관점의 특징을 기술함으로써 수업 실행 지식과 관련된 논의에의 시사점을 얻고자 하였다. 이를 위해 교사들이 작성한 수업 관찰 결과를 교사 지식의 분석틀인 KQ에 비추어 해석하였으며, 삼각형의 무게중심 교수-학습에 대해 선행 연구에서 지적한 주요 이슈와 관련하여 분석하였다. 이로부터 무게중심 수업 분석에서 드러나는 교사 지식의 특징을 6가지로 요약하였으며, 교사들의 수업 실행 역량 개발과 관련된 몇 가지 시사점을 논의하였다.

• 정보처리학회논문지:소프트웨어 및 데이터공학
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• 제4권10호
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• pp.473-478
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• 2015

최근, 축산 농가에서 돈사 내 개별 돼지들의 자동 영상 모니터링 기법이 중요한 이슈로 떠오르고 있다. 현재까지 이를 위한 다양한 연구들이 소개되어 왔지만, 아직도 추가적인 연구 노력이 요구된다. 특히, 혼잡한 돈방에서 움직이는 근접한 돼지들의 객체 식별을 위한 연구가 영상처리 분야 입장에서 요구된다. 본 논문에서는 감시카메라 환경에서 움직이는 근접한 돼지들의 객체 식별을 위한 해법으로써 시공간 정보와 영역 확장 기법을 이용한 효율적인 영상 분할 방법론을 새롭게 제안한다. 실제로 세종에 위치한 한 돈사에서 취득한 영상 정보를 이용하여 본 논문에서 제안한 시스템의 성능을 실험적으로 검증하였다.

• 한국어교육
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• 제29권1호
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• pp.25-52
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• 2018

This study purposed to discuss and suggest how to apply the internationally circulated standard Korean language curriculum to the fields of education. For this purpose, principles of the curriculum development that use reference of criterions like setting the education goals and stages of the Korean as second foreign language at the Korean foreign secondary school with the cases were reviewed. Studies about the curriculums of Korean language as an unit of state were began at 2010 and being continued in 2017. These researches pointed out a standard of the Korean language education, which influenced the development of curriculums, evaluations, and textbooks. Korean language teachers need lots of informations how to adjust the curriculums because they recognize that the curriculum as a reference of criteria is very difficult to be utilized. Roles of the reference of criteria that were extracted from the review on the curriculum development of the Korean as a second foreign language are providing a content basis for setting the goals of the curriculum and setting the stages connected with the operation of semesters. After the macroscopic development, plans for the phase of a syllabus run along. At this stage, sources of the items of education should be offered and elaboration of the education contents may design the syllabus. Finally, through a series of process, programs for Korean language education and textbook will be completed. Through this whole process, standard curriculum provides orientation and guidelines for the process of the development.

• 비교문화연구
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• 제36권
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• pp.37-59
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• 2014

William Wordsworth's "The Thorn" revolves around the following questions: Who is Martha? Why does she go to the mountain top and repeat her doleful cry? To these questions, it gives us two different kinds of answers; one derives from the villagers, and the other from the narrator. This essay attempts to examine how the answers exemplify two different critical approaches to the problem of community, using Jacques Lacan's account of sexual difference in his seminar on Encore as a guiding thread of analysis. The important thing to retain here is that sexual difference in Lacan's seminar on Encore does not so much indicate biological determinations as two distinct forms of relating to the other which are intimately bound up with the question of how a community is constructed and maintained. The first form, called "masculine," suggests that it is a radical exception to a community that makes possible the community as a field of totality or sameness; the second form, called "feminine," shows that each of the subjects cannot be regarded as a member of a closed community which is guaranteed by the exceptionality, but as an exception that is radically singular. This in turn leads us to consider the possibility that the masculine form has to do with the villagers' effort to distinguish themselves from Martha and the feminine form with the way in which the narrator confronts and represents her. In the course of his formulation of sexuation graph, Lacan stresses that the masculine side must be supplemented by the feminine side, which allows us to elaborate on why, concerning Martha, the narrator does not just keep the completely different position from the villagers'. This is to say that the villagers' representation of Martha as an exception to the community should be supplemented by the narrator's attempt to tell Martha's story as the villagers do and at the same time to capture something of her enigmatic unrepresentability. Bearing in mind Charles Shepherdson's elaboration of traumatic memory, this essay also tries to clarify how the narrator preserves and even transmits something of Martha's truth that is embodied in her uncontrollable and unassimilable cry.